CN112265133B - Support leveling steel plate position adjusting device and method for manufacturing precast beam - Google Patents
Support leveling steel plate position adjusting device and method for manufacturing precast beam Download PDFInfo
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- CN112265133B CN112265133B CN202011223144.5A CN202011223144A CN112265133B CN 112265133 B CN112265133 B CN 112265133B CN 202011223144 A CN202011223144 A CN 202011223144A CN 112265133 B CN112265133 B CN 112265133B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
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Abstract
The invention discloses a position adjusting device for a support leveling steel plate and a method for manufacturing a precast beam, wherein the position adjusting device for the support leveling steel plate consists of a trolley, a magnetic suspension device, a lifting device, a supporting plate, a biaxial inclination angle sensor, a driving device and a control module; the beneficial technical effects of the invention are as follows: the scheme can effectively improve the convenience of the position adjustment operation of the embedded steel plate and ensure that the embedded steel plate is accurately embedded in the precast beam.
Description
Technical Field
The invention relates to a precast beam manufacturing technology, in particular to a position adjusting device for a support leveling steel plate and a precast beam manufacturing method.
Background
The precast beam is the important component of assembled bridge, and based on prior art can know, for the standardized preparation of being convenient for, the precast beam is the beam of uniform height usually, and in actual engineering, often needs the roof beam body to have certain slope (like mountain area highway bridge), at this moment, for guaranteeing bridge beam supports can vertical atress, the most common mode is to add in the middle of beam bottom and support and establish concrete wedge or set up pre-buried steel sheet in precast beam bottom surface.
The concrete wedge blocks are arranged, and the method enables the beam body to form different gradient states under the adjustment of the wedge blocks. The method wastes resources and is not firm in fixation, the construction time is prolonged, and the safety risk in the erection process is increased. The method for arranging the beam bottom embedded steel plate comprises a special-shaped steel plate method and a sand layer supporting method. The special-shaped steel plate method is characterized in that beam body embedded steel plates are manufactured into steel plates with different thicknesses so as to achieve the steel plates with the same gradient with a beam, and then the steel plates are installed. For the deformed steel plate, the machining process is complex, the deformed steel plate has no universality and can only be independently customized according to specific conditions, the manufacturing cost is high, and the manufacturing period is long. The sand layer supporting method is to set a pre-fabricated groove at the pedestal of the beam, fill sand in the pre-fabricated groove and lay the pre-fabricated groove to a required gradient, and then set a pre-buried steel plate or a template on the pre-fabricated groove. The method has low control precision on the embedded steel plate, easily causes deviation in subsequent construction, increases the cost of post-treatment, leads to higher construction cost, has fussy gradient control and easily causes the damage of a beam body.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a position adjusting device for a support leveling steel plate, which has the following structure: the support leveling steel plate position adjusting device consists of a trolley, a magnetic suspension device, a lifting device, a supporting plate, a biaxial inclination angle sensor, a driving device and a control module;
the lifting device is arranged on the upper end surface of the trolley;
the magnetic suspension device consists of a floating body and a base; the upper end of the floating body is fixedly connected with the middle part of the lower end surface of the supporting plate, and the upper end surface of the supporting plate is a plane; the lower end surface of the floating body is a convex spherical surface, and the middle part of the lower end surface of the floating body is provided with a plurality of positioning bulges; the upper end surface of the base is an inwards concave spherical surface, and the upper end surface of the base is matched with the lower end surface of the floating body; a plurality of warp grooves and a plurality of weft grooves are arranged on the upper end surface of the base, a plurality of positioning columns are formed in the crossing areas of the warp grooves and the weft grooves, and when the floating body is contacted with the base, the positioning bulges are inserted into the gaps of the positioning columns;
the lower end of the base is fixedly connected with the upper end of the telescopic part of the lifting device, and the lifting device can drive the base to move up and down;
the two-axis inclination angle sensor is arranged in the supporting plate and can detect the inclination angle of the upper end surface of the supporting plate; the upper end surface of the supporting plate is provided with a limiting structure;
the driving device is arranged on the trolley, and a power output part of the driving device is in transmission connection with wheels of the trolley;
the control part of the magnetic suspension device, the control part of the lifting device, the control part of the driving device and the biaxial inclination angle sensor are electrically connected with the control module.
Preferably, the floating body comprises a shell and a plurality of permanent magnets, the permanent magnets are arranged in the shell, and the permanent magnets are distributed in a spherical array form matched with the lower end face of the floating body; a plurality of cavities are arranged in the shell, and a plurality of permanent magnets are arranged in the cavities in a one-to-one correspondence manner; the base includes shell and a plurality of excitation coil, and a plurality of excitation coil distribute according to the sphere array form that matches with the base up end, and the shell is inside to be provided with a plurality of storehouses, and a plurality of excitation coil one-to-one sets up in a plurality of storehouses.
Based on the scheme, the invention also provides a method for manufacturing the precast beam, the structure of the support leveling steel plate position adjusting device related in the method is as described above, and the specific method comprises the following steps:
1) arranging a prefabricated pedestal; a through groove is formed in the upper end face of the prefabricated pedestal;
2) building a precast beam template on the precast pedestal; the bottom surface of the precast beam template is provided with an embedded steel plate mounting hole, and the position of the embedded steel plate mounting hole is opposite to the through groove;
3) before concrete pouring, the embedded steel plate is installed according to the following steps:
A) a support leveling steel plate position adjusting device is arranged in the through groove, and then the support leveling steel plate position adjusting device is controlled to move to the embedded steel plate mounting hole to stop; in an initial state, the center of the lower end surface of the floating body is opposite to the center of the upper end surface of the base, and the upper end surface of the supporting plate is parallel to the horizontal plane;
B) the height of the supporting plate is adjusted through the lifting device, and when the position of the supporting plate reaches the set height, the lifting device locks the position; then, the floating body is suspended through the magnetic suspension device, the inclination state of the floating body is slowly adjusted, in the adjusting process, the inclination angle of the upper end face of the supporting plate is detected in real time through the two-axis inclination angle sensor, when the inclination angle of the upper end face of the supporting plate reaches a set value, the adjustment of the inclination state of the floating body is stopped, then the floating body slowly falls in a translation mode until the floating body is seated on the base, and then the magnetic suspension device is closed;
C) the embedded steel plate is placed on the supporting plate, and the limiting structure on the supporting plate can prevent the embedded steel plate from sliding off; under the condition that the position of the embedded steel plate is kept unchanged, the embedded steel plate is connected with the internal steel bar of the precast beam template, and then a gap between the embedded steel plate mounting hole and the embedded steel plate is sealed; finishing the installation operation of the embedded steel plate;
4) after the precast beam template is manufactured, performing concrete pouring operation; and after the concrete is cured, removing the support and leveling steel plate position adjusting device.
The principle of the invention is as follows: in the prior art, the difficulty in the position adjustment operation of the steel plate is mainly caused by two reasons, one is that the embedded steel plate needs to be fixed through the steel bars inside the precast beam, so the corresponding operation can only be carried out during or after the precast beam template is built, the internal space of the template is narrow, a large number of steel bars exist, and the personnel action is very inconvenient; secondly, before the position of the embedded steel plate is fixed, the position of the embedded steel plate needs to be kept through a sand cushion or an adjustable bracket, in the adjusting process, an operator adjusts the sand cushion or the bracket to change the position of the embedded steel plate, in order to ensure the position precision, the action amplitude of adjusting the sand cushion or the bracket each time cannot be too large, and the operation is very complicated;
after the invention is adopted, the magnetic suspension device is adopted, the posture of the supporting plate can be adjusted through the magnetic suspension device, manual operation of personnel is not needed in the adjusting process, the adjusting operation is very convenient, the posture of the supporting plate is flexible and controllable, the adjusting precision can be effectively ensured, the operation in the adjusting process does not need to be participated by the embedded steel plate, and the embedded steel plate is directly placed after the position of the supporting plate is adjusted.
The beneficial technical effects of the invention are as follows: the scheme can effectively improve the convenience of the position adjustment operation of the embedded steel plate and ensure that the embedded steel plate is accurately embedded in the precast beam.
Drawings
FIG. 1 is a schematic diagram of the position relationship among an embedded steel plate, a precast beam and a bridge support;
FIG. 2 is a schematic structural diagram of a support leveling steel plate position adjusting device;
FIG. 3 is a schematic view of a use state of the support leveling steel plate position adjusting device;
FIG. 4 is a schematic cross-sectional structure of a magnetic levitation apparatus;
FIG. 5 is a schematic view of the bottom structure of the floating body;
FIG. 6 is a schematic view of the top surface of the base;
FIG. 7 is a schematic diagram of a prefabricated pedestal structure;
the names corresponding to each mark in the figure are respectively: the device comprises a trolley 1, a floating body 2, a positioning bulge 2-1, a permanent magnet array 2-2, a base 3, a magnet exciting coil array 3-1, a lifting device 4, a supporting plate 5, a precast beam template 6, a precast pedestal 7, a pouring area 8, a bridge support 9, a precast beam 10, an embedded steel plate 11 and a through groove 12.
Detailed Description
The utility model provides a support leveling steel sheet position control device which the structure is: the support leveling steel plate position adjusting device consists of a trolley 1, a magnetic suspension device, a lifting device 4, a supporting plate 5, a biaxial inclination angle sensor, a driving device and a control module;
the lifting device 4 is arranged on the upper end surface of the trolley 1;
the magnetic suspension device consists of a floating body 2 and a base 3; the upper end of the floating body 2 is fixedly connected with the middle part of the lower end face of the supporting plate 5, and the upper end face of the supporting plate 5 is a plane; the lower end surface of the floating body 2 is a convex spherical surface, and the middle part of the lower end surface of the floating body 2 is provided with a plurality of positioning bulges 2-1; the upper end surface of the base 3 is a concave spherical surface, and the upper end surface of the base 3 is matched with the lower end surface of the floating body 2; a plurality of warp grooves and a plurality of weft grooves are formed in the upper end face of the base 3, a plurality of positioning columns are formed in the crossing areas of the warp grooves and the weft grooves, and when the floating body 2 is in contact with the base 3, the positioning protrusions 2-1 are inserted into gaps of the positioning columns; the axial leads of all the positioning columns are intersected with the spherical center of the upper end surface of the base 3;
the lower end of the base 3 is fixedly connected with the upper end of the telescopic part of the lifting device 4, and the lifting device 4 can drive the base 3 to move up and down;
the biaxial inclination angle sensor is arranged in the supporting plate 5 and can detect the inclination angle of the upper end surface of the supporting plate 5; a limiting structure is arranged on the upper end surface of the supporting plate 5;
the driving device is arranged on the trolley 1, and a power output part of the driving device is in transmission connection with wheels of the trolley 1;
the control part of the magnetic suspension device, the control part of the lifting device 4, the control part of the driving device and the biaxial inclination angle sensor are electrically connected with the control module. In specific implementation, the control module can be used as a relay device, namely, the control module transmits an output signal of the biaxial inclination angle sensor to the rear console, and controls the actions of the magnetic suspension device, the lifting device 4 and the driving device according to a command of the rear console; if the automation degree of the operation is further improved, a control program can be set in the control module, after the device is started, the control module controls the trolley 1 to move to a preset position, then the lifting device 4 is automatically extended to the set position, and then the action of the magnetic suspension device is automatically controlled according to the output signal of the biaxial inclination angle sensor.
Further, the floating body 2 comprises a shell and a plurality of permanent magnets, the permanent magnets are arranged in the shell, and the permanent magnets are distributed in a spherical array form matched with the lower end face of the floating body 2; a plurality of cavities are arranged in the shell, and a plurality of permanent magnets are arranged in the cavities in a one-to-one correspondence manner; the base 3 includes shell and a plurality of excitation coil, and a plurality of excitation coil distribute according to the sphere array form that matches with 3 up end of base, and the shell is inside to be provided with a plurality of storehouses, and a plurality of excitation coil one-to-one sets up in a plurality of storehouses.
A method of making a precast beam characterized by: the method comprises the following steps:
1) arranging a prefabricated pedestal; a through groove is formed in the upper end face of the prefabricated pedestal; in specific implementation, a guide groove matched with the wheels of the trolley 1 can be arranged on the bottom surface of the through groove so as to improve the motion accuracy of the trolley 1;
2) building a precast beam template on the precast pedestal; the bottom surface of the precast beam template is provided with an embedded steel plate mounting hole, and the position of the embedded steel plate mounting hole is opposite to the through groove;
3) before concrete pouring, the embedded steel plate is installed according to the following steps:
A) a support leveling steel plate position adjusting device is arranged in the through groove, and then the support leveling steel plate position adjusting device is controlled to move to the embedded steel plate mounting hole to stop; in an initial state, the center of the lower end surface of the floating body 2 is opposite to the center of the upper end surface of the base 3, and the upper end surface of the supporting plate 5 is parallel to the horizontal plane;
B) the height of the supporting plate 5 is adjusted through the lifting device 4, and when the position of the supporting plate 5 reaches the set height, the lifting device 4 locks the position; then, the floating body 2 is suspended through a magnetic suspension device, the inclination state of the floating body 2 is slowly adjusted, in the adjusting process, the inclination angle of the upper end surface of the supporting plate 5 is detected in real time through a two-axis inclination angle sensor, when the inclination angle of the upper end surface of the supporting plate 5 reaches a set value, the adjustment of the inclination state of the floating body 2 is stopped, then the floating body 2 slowly falls in a translation mode until the floating body 2 is seated on the base 3, and then the magnetic suspension device is closed;
C) the embedded steel plate is placed on the supporting plate 5, and the limiting structure on the supporting plate 5 can prevent the embedded steel plate from sliding off; under the condition that the position of the embedded steel plate is kept unchanged, the embedded steel plate is connected with the internal steel bar of the precast beam template, and then a gap between the embedded steel plate mounting hole and the embedded steel plate is sealed; finishing the installation operation of the embedded steel plate;
4) after the precast beam template is manufactured, performing concrete pouring operation; after the concrete is cured, the support leveling steel plate position adjusting device can be removed;
the support leveling steel plate position adjusting device consists of a trolley 1, a magnetic suspension device, a lifting device 4, a supporting plate 5, a biaxial inclination angle sensor, a driving device and a control module;
the lifting device 4 is arranged on the upper end surface of the trolley 1;
the magnetic suspension device consists of a floating body 2 and a base 3; the upper end of the floating body 2 is fixedly connected with the middle part of the lower end face of the supporting plate 5, and the upper end face of the supporting plate 5 is a plane; the lower end surface of the floating body 2 is a convex spherical surface, and the middle part of the lower end surface of the floating body 2 is provided with a plurality of positioning bulges 2-1; the upper end surface of the base 3 is a concave spherical surface, and the upper end surface of the base 3 is matched with the lower end surface of the floating body 2; a plurality of warp grooves and a plurality of weft grooves are formed in the upper end face of the base 3, a plurality of positioning columns are formed in the crossing areas of the warp grooves and the weft grooves, and when the floating body 2 is in contact with the base 3, the positioning protrusions 2-1 are inserted into gaps of the positioning columns;
the lower end of the base 3 is fixedly connected with the upper end of the telescopic part of the lifting device 4, and the lifting device 4 can drive the base 3 to move up and down;
the biaxial inclination angle sensor is arranged in the supporting plate 5 and can detect the inclination angle of the upper end surface of the supporting plate 5; a limiting structure is arranged on the upper end surface of the supporting plate 5;
the driving device is arranged on the trolley 1, and a power output part of the driving device is in transmission connection with wheels of the trolley 1;
the control part of the magnetic suspension device, the control part of the lifting device 4, the control part of the driving device and the biaxial inclination angle sensor are electrically connected with the control module.
Claims (1)
1. A method of making a precast beam characterized by: the method comprises the following steps:
1) arranging a prefabricated pedestal; a through groove is formed in the upper end face of the prefabricated pedestal;
2) building a precast beam template on the precast pedestal; the bottom surface of the precast beam template is provided with an embedded steel plate mounting hole, and the position of the embedded steel plate mounting hole is opposite to the through groove;
3) before concrete pouring, the embedded steel plate is installed according to the following steps:
A) a support leveling steel plate position adjusting device is arranged in the through groove, and then the support leveling steel plate position adjusting device is controlled to move to the embedded steel plate mounting hole to stop; in an initial state, the center of the lower end surface of the floating body (2) is opposite to the center of the upper end surface of the base (3), and the upper end surface of the supporting plate (5) is parallel to the horizontal plane;
B) the height of the supporting plate (5) is adjusted through the lifting device (4), and when the position of the supporting plate (5) reaches the set height, the lifting device (4) locks the position; then, the floating body (2) is suspended through a magnetic suspension device, the inclination state of the floating body (2) is slowly adjusted, in the adjusting process, the inclination angle of the upper end surface of the supporting plate (5) is detected in real time through a two-axis inclination angle sensor, when the inclination angle of the upper end surface of the supporting plate (5) reaches a set value, the inclination state of the floating body (2) is stopped being adjusted, then the floating body (2) slowly falls in a translation mode until the floating body (2) is seated on the base (3), and then the magnetic suspension device is closed;
C) the embedded steel plate is placed on the supporting plate (5), and the limiting structure on the supporting plate (5) can prevent the embedded steel plate from sliding off; under the condition that the position of the embedded steel plate is kept unchanged, the embedded steel plate is connected with the internal steel bar of the precast beam template, and then a gap between the embedded steel plate mounting hole and the embedded steel plate is sealed; finishing the installation operation of the embedded steel plate;
4) after the precast beam template is manufactured, performing concrete pouring operation; after the concrete is cured, the support leveling steel plate position adjusting device can be removed;
the support leveling steel plate position adjusting device consists of a trolley (1), a magnetic suspension device, a lifting device (4), a supporting plate (5), a biaxial inclination angle sensor, a driving device and a control module;
the lifting device (4) is arranged on the upper end face of the trolley (1);
the magnetic suspension device consists of a floating body (2) and a base (3); the upper end of the floating body (2) is fixedly connected with the middle part of the lower end surface of the supporting plate (5), and the upper end surface of the supporting plate (5) is a plane; the lower end surface of the floating body (2) is a convex spherical surface, and the middle part of the lower end surface of the floating body (2) is provided with a plurality of positioning bulges (2-1); the upper end surface of the base (3) is a concave spherical surface, and the upper end surface of the base (3) is matched with the lower end surface of the floating body (2); a plurality of warp grooves and a plurality of weft grooves are formed in the upper end face of the base (3), a plurality of positioning columns are formed in the crossing areas of the warp grooves and the weft grooves, and when the floating body (2) is in contact with the base (3), the positioning protrusions (2-1) are inserted into the gaps of the positioning columns;
the lower end of the base (3) is fixedly connected with the upper end of a telescopic part of the lifting device (4), and the lifting device (4) can drive the base (3) to move up and down;
the biaxial inclination angle sensor is arranged in the supporting plate (5), and can detect the inclination angle of the upper end surface of the supporting plate (5); a limiting structure is arranged on the upper end surface of the supporting plate (5);
the driving device is arranged on the trolley (1), and a power output part of the driving device is in transmission connection with wheels of the trolley (1);
the control part of the magnetic suspension device, the control part of the lifting device (4), the control part of the driving device and the biaxial inclination angle sensor are electrically connected with the control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011223144.5A CN112265133B (en) | 2020-11-05 | 2020-11-05 | Support leveling steel plate position adjusting device and method for manufacturing precast beam |
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| CN202011223144.5A CN112265133B (en) | 2020-11-05 | 2020-11-05 | Support leveling steel plate position adjusting device and method for manufacturing precast beam |
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| CN112265133B true CN112265133B (en) | 2021-12-31 |
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| CN114872169B (en) * | 2022-04-21 | 2023-11-14 | 中建八局第二建设有限公司 | Leveling assembly and prefabricated track beam template manufacturing device |
| CN117227854B (en) * | 2023-11-16 | 2024-02-02 | 沈阳微控新能源技术有限公司 | Transport platform and transport vehicle |
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| CN206599737U (en) * | 2017-03-21 | 2017-10-31 | 山西省交通科学研究院 | A kind of bearing supertronic device for being used to become slope precast assembly beam bridge |
| CN107313353A (en) * | 2017-08-16 | 2017-11-03 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of device and method for accurate adjustment precast beam bottom pre-embedded steel slab longitudinal slope |
| CN208468702U (en) * | 2018-05-23 | 2019-02-05 | 常州市泽宸电子有限公司 | The supertronic device of pre-embedded steel slab |
| CN110067810B (en) * | 2019-05-15 | 2024-04-16 | 傲基科技股份有限公司 | Suspension control method, controller, support apparatus, and readable storage medium |
| CN210341661U (en) * | 2019-05-30 | 2020-04-17 | 中交一公局第四工程有限公司 | Wedge-shaped block adjusting device for longitudinal and transverse slopes at bottom of T beam |
| CN210597023U (en) * | 2019-06-04 | 2020-05-22 | 中交路桥建设有限公司 | Spherical hinge type universal slope regulator for pre-buried steel plate of precast beam |
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